package homework7;
//j + j -
public class Demo {
	public static void main(String[] args) throws InterruptedException {
		Thread1 t1 = new Thread1();
		Thread1 t2 = new Thread1(); 
		Thread2 t3 = new Thread2(); 
		Thread2 t4 = new Thread2(); 
		
		t1.start();t2.start();t3.start();t4.start();
		
	}

}
